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Resonant multiple diffraction of light in 3D opal‐like photonic crystals
Author(s) -
Fedotov V. G.,
Sel'kin A. V.,
Ukleev T. A.,
Men'shikova A. Yu.,
Shevchenko N. N.
Publication year - 2011
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201046382
Subject(s) - bragg's law , reflection (computer programming) , diffraction , photonic crystal , optics , materials science , spectral line , dielectric , diffraction topography , excited state , crystal (programming language) , electromagnetic radiation , physics , optoelectronics , atomic physics , astronomy , computer science , programming language
Propagation of electromagnetic waves in spatially confined three‐dimensional (3D) photonic crystals (PhCs) of high dielectric contrast is studied for the case when the regime of the multiple Bragg diffraction (MBD) is of importance. The Bragg reflection spectra of opal‐like PhCs made up of polystyrene spheres are measured. Detailed comparison of the eigenmode energy spectrum with the measured and calculated reflectance contours is performed. The complicated structure of the Bragg reflection spectra is shown to be due to the additional eigenmodes excited resonantly by diffraction of light from the crystal planes inclined to the lateral ones.